JP2008039283A - Combustion equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide combustion equipment, easily installable, without increasing the number of parts for installation, when slantingly installing an igniter and a flame detector. <P>SOLUTION: This combustion equipment has a burner having a flame hole, the igniter or the flame detector having an installation flange and composed of an insulator for holding an igniter or a flame detector, and is formed by slantingly installing the igniter or the flame detector so that the igniter or the flame detector is opposed to the flame hole. The installation flange of the igniter or the flame detector is inclined to the insulator. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combustion apparatus for burning fuel such as oil and gas.

  2. Description of the Related Art Conventionally, a combustion apparatus that burns fuel such as oil and gas includes an ignition device for starting combustion in a burner and a flame detection device that detects a combustion state. Then, the mounting flange portion integrally formed on the insulator of the ignition device and the flame detection device is fixed to the burner case with a fixing bracket and screwed with a screw, and the ignition portion (ignition plug) of the ignition device and the flame of the flame detection device are The detection part (frame rod) is attached at a position facing the flame hole part of the burner. (Patent Document 1)

  In addition, in the ignition device, in addition to the above-described high-pressure discharge method using an ignition plug, an ignition heater in which an ignition part is a heating element is employed in order to perform silent ignition. Since the connecting portion (such as brazing) between the heat generating portion and the lead wire portion is built in the insulator of the ignition heater, the connecting portion tends to be easily deteriorated by the combustion heat of the burner. Therefore, in order to reduce the size of the combustion device and keep the connection part of the ignition heater away from the combustion flame of the burner, a method is adopted in which the flame hole part of the burner is inclined with respect to the vertical plane and the ignition heater is attached to the burner case. ing. (Patent Document 2)

JP 2004-278951 A Japanese Utility Model Publication No. 4-92113

  However, when the flame hole part of the burner is inclined with respect to the vertical plane, the ignition part (ignition plug) and the flame detection part (frame rod) face the flame hole part while ensuring a certain distance. Therefore, it is necessary to increase the bending accuracy of the ignition part (ignition plug) and the flame detection part (frame rod). Therefore, there has been a problem that the manufacturing cost increases in order to increase the processing accuracy.

  Furthermore, in the case of an ignition heater having a heating element as an ignition part, since it is difficult to bend the heating element, the insulator part of the ignition heater must be attached directly to the burner case. In addition to the fixture for fixing the flame detection device, a fixture for inclining and fixing the insulator portion is required, which increases the number of components and the assembly work, resulting in an increase in the number of assembly steps. Therefore, there is a problem that the manufacturing cost increases due to an increase in the number of parts and the number of assembly steps.

  The present invention is to solve the above-described problems, and provides a combustion device that can be easily mounted without increasing the number of components for mounting when the ignition device and the flame detection device are mounted at an angle. Objective.

  The present invention includes an ignition device or a flame detection device that includes a burner having a flame hole portion and a lever portion that has a mounting flange portion and holds the ignition portion or the flame detection portion, and the flame hole portion includes the ignition device. In the combustion device to which the ignition device or the flame detection device is attached to be inclined in order to make the part or the flame detection portion face each other, the mounting flange portion of the ignition device or the flame detection device is inclined with respect to the insulator portion This relates to a combustion apparatus characterized by the above.

  An ignition heater comprising a burner having a flame hole portion inclined with respect to a vertical plane, a burner case for fixing the burner, and an insulator portion having a mounting flange portion and holding an ignition portion made of a heating element. In a combustion apparatus that tilts and attaches the ignition heater to the burner case so that the ignition part faces the flame hole part, the mounting flange part of the ignition heater is inclined with respect to the insulator part This relates to a characteristic combustion apparatus.

  With the above-described configuration, when the ignition device or the flame detection device is installed at an angle, the mounting bracket for tilting is not necessary, and the ignition unit and the flame detection unit are processed so as to face the flame hole of the burner. There is no need to increase accuracy. Therefore, it is possible to easily attach the ignition device or the flame detection device without increasing the number of parts and suppressing the manufacturing cost.

  The preferred embodiment of the present invention will be briefly described by showing the operation of the present invention.

  The present invention relates to a combustion apparatus that attaches an ignition device or a flame detection device in an inclined manner so that the ignition portion or the flame detection portion faces the flame hole portion of a burner, and the mounting flange portion of the ignition device or the flame detection device is an insulator. It is inclined with respect to the part.

  In other words, since the mounting flange portion of the ignition device or flame detection device is inclined with respect to the insulator portion, if the mounting flange portion is fixed vertically or horizontally with the mounting bracket, the ignition portion or flame detection portion is inclined. Since it is attached, a fixing bracket for tilting is not required, and it is not necessary to increase the processing accuracy of the ignition part and the flame detection part in order to dispose it facing the flame hole part of the burner. Therefore, it is possible to easily attach the ignition device or the flame detection device without increasing the number of parts and suppressing the manufacturing cost.

  Furthermore, when attaching an ignition heater to a burner having a flame hole portion inclined with respect to the vertical plane, the ignition portion is made to incline the flange portion for attachment of the ignition heater made of a heating element with respect to the insulator portion. If the mounting flange portion is fixed vertically or horizontally with a fixing bracket, the ignition portion is inclined and attached, so that a fixing bracket for tilting is not required. Therefore, the ignition heater can be more easily attached without increasing the number of parts, and thus an increase in manufacturing cost can be suppressed.

  Specific embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a combustion apparatus will be described in which an ignition heater is attached in which an attachment flange portion of an ignition heater whose ignition portion is a heating element is inclined with respect to the insulator portion.

  FIG. 1 is a side sectional configuration diagram of a combustion apparatus. A main body 1 of a combustion apparatus includes a blower 2 that takes outside air into the main body 1 and pumps it, a burner 3 that burns fuel to generate combustion exhaust gas, and a burner. 3, and a combustion chamber 5 provided on the burner case 4. Combustion exhaust gas generated by the combustion of the burner 3 and air taken into the main body 1 by the blower 2. It mixes and it is comprised so that it may discharge | emit as warm air from the blower outlet 6 provided in the front lower position of the main body 1. FIG.

  The burner 3 fixed to the burner case 4 is composed of a mixing tube 7 that mixes fuel gas and primary air to form a mixed gas, and a flame hole portion 8 that jets and burns the mixed gas. 8 is inclined toward the blower 2 with respect to the vertical plane. Further, the burner case 4 is provided with an ignition heater 9 for igniting the mixed gas ejected from the flame hole 8 and a flame detection device 10 for detecting the flame current of the flame formed by the flame hole 8. The reason for inclining the flame hole 8 is to make the combustion chamber 5 smaller by inclining the flame to shorten the flame.

  FIG. 2 is an exploded oblique view of attaching the ignition heater 9 and the flame detection device 10 to the burner case 4. The burner case 4 is fixed to the burner case 4 with the flame hole portion 8 inclined. The insertion holes 4a and 4b of the ignition heater 9 and the flame detector 10 are provided at the positions. The flame detection device 10 includes a flame detection portion 10a for detecting a flame current and a lever portion 10b, and an attachment flange portion 10c for fixing the flame detection device 10 is integrally formed in the lever portion 10b. However, since the mounting flange portion 10c is not inclined with respect to the insulator portion 10b, the flame detecting portion 10a is bent.

  Further, as shown in FIG. 3, the ignition heater 9 includes an ignition part 9a made of a heating element and an insulator part 9b, and an attachment flange part 9c for fixing the ignition heater 9 is provided on the insulator part 9b. Inclined and integrally molded. In this embodiment, only the ignition heater 9 has the mounting flange portion 9c inclined with respect to the insulator portion 9b. However, as shown in FIG. 4, the mounting flange portion 10c of the flame detector 10 is connected to the insulator portion 10b. If it is made to incline, it becomes unnecessary to perform the bending process of the flame detection part 10a.

  Next, a method of attaching the ignition heater 9 and the flame detection device 10 to the burner case 4 will be described with reference to FIG. First, the ignition heater 9 and the flame detection device 10 are respectively inserted into the insertion holes 4 a and 4 b of the burner case 4, and the mounting flange portions 9 c and 10 c of the ignition heater 9 and the flame detection device 10 are placed horizontally on the upper surface of the burner case 4. The fixing bracket 11 is placed on the upper surfaces of the mounting flange portions 9c and 10c and fixed with the screws 12.

  At this time, since the mounting flange portion 9c of the ignition heater 9 is inclined with respect to the insulator portion 9b, the ignition flange portion 9c is fixed horizontally to the burner case 4 as shown in FIG. The ignition part 9 a of the heater 9 can be attached at a position facing the flame hole part 8 of the burner 3.

  That is, when the ignition part 9a is an ignition heater 9 made of a heating element, it is difficult to bend the ignition part 9a, so the insulator part 9b of the ignition heater 9 must be attached to the burner case 4 while being inclined. However, in the present invention, since the mounting flange 9c of the ignition heater 9 is inclined, the mounting flange portion 10c of the flame detection device 10 may be pressed simultaneously with the fixing bracket 11 from the vertical direction and fixed with the screw 12.

  Accordingly, if the mounting flange portion 9c of the ignition heater 9 is fixed to the burner case 4 with the fixing bracket 11, the ignition portion 9a is inclined and is mounted at a position facing the flame hole portion 8 of the burner 3. Since the metal fitting is not necessary, it can be easily attached to the burner case 4 without increasing the number of parts, and therefore, an increase in manufacturing cost can be suppressed.

It is a side cross-section block diagram of the Example of this invention. It is an exploded inclination figure of the Example of this invention. It is an ignition heater inclination figure of the Example of this invention. It is a flame detection apparatus inclination figure of the Example of this invention. It is a principal part side surface block diagram of the Example of this invention.

Explanation of symbols

3 Burner 4 Burner case 7 Burner box 8 Flame hole 9 Ignition heater (ignition device)
9a Ignition part 9b, 10b Insulator part 9c, 10c Mounting flange part 10 Flame detection device 10a Flame detection part

Claims (2)

  An ignition device or a flame detection device comprising a burner having a flame hole portion and an insulator portion having a mounting flange portion and holding the ignition portion or the flame detection portion, wherein the ignition hole or the flame is provided in the flame hole portion. In the combustion device that is mounted with the ignition device or the flame detection device tilted so that the detection unit faces each other, a mounting flange portion of the ignition device or the flame detection device is inclined with respect to the insulator portion. Combustion device.   A burner having a flame hole portion inclined with respect to a vertical plane, a burner case for fixing the burner, and an ignition heater constituted by an insulator portion having a mounting flange portion and holding an ignition portion made of a heating element. In the combustion apparatus in which the ignition heater is attached to the burner case in an inclined manner so that the ignition part is opposed to the flame hole part, the attachment flange part of the ignition heater is inclined with respect to the insulator part. Combustion device.

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